<template>
  <a-drawer
    :title="title"
    :maskClosable="true"
    width="650"
    placement="right"
    :closable="true"
    @close="close"
    :visible="visible"
    style="overflow: auto;padding-bottom: 53px;">

    <a-form>
      <a-form-item label="所拥有的菜单">
        <a-tree
          checkable
          @check="onCheck"
          :defaultExpandAll="true"
          :auto-expand-parent="true"
          :checkedKeys="checkedKeys"
          :treeData="treeData"
          @expand="onExpand"
          @select="onTreeNodeSelect"
          :selectedKeys="selectedKeys"
          :expandedKeys="expandedKeysss"
          :checkStrictly="checkStrictly"
          :replace-fields="replaceFields">
          <span slot="hasDatarule" slot-scope="{slotTitle,ruleFlag}">
            {{ slotTitle }}<a-icon v-if="ruleFlag" type="align-left" style="margin-left:5px;color: red;"></a-icon>
          </span>
        </a-tree>
      </a-form-item>
    </a-form>

    <div class="drawer-bootom-button">
      <a-dropdown style="float: left" :trigger="['click']" placement="topCenter">
        <a-menu slot="overlay">
          <a-menu-item key="1" @click="switchCheckStrictly(1)">父子关联</a-menu-item>
          <a-menu-item key="2" @click="switchCheckStrictly(2)">取消关联</a-menu-item>
          <a-menu-item key="3" @click="checkALL">全部勾选</a-menu-item>
          <a-menu-item key="4" @click="cancelCheckALL">取消全选</a-menu-item>
          <a-menu-item key="5" @click="expandAll">展开所有</a-menu-item>
          <a-menu-item key="6" @click="closeAll">合并所有</a-menu-item>
        </a-menu>
        <a-button>
          树操作 <a-icon type="up" />
        </a-button>
      </a-dropdown>
      <a-popconfirm title="确定放弃编辑？" @confirm="close" okText="确定" cancelText="取消">
        <a-button style="margin-right: .8rem">取消</a-button>
      </a-popconfirm>
      <a-button @click="handleSubmit(false)" type="primary" :loading="loading" ghost style="margin-right: 0.8rem">仅保存</a-button>
      <a-button @click="handleSubmit(true)" type="primary" :loading="loading">保存并关闭</a-button>
    </div>

  </a-drawer>

</template>
<script>
  import { queryUserMenuTree, saveRoleMenu, queryRoleMenus } from '@/api/system'

  export default {
    name: 'RoleMenuModal',
    components: {
    },
    data () {
      return {
        roleId: '',
        replaceFields: {
          key: 'id',
          value: 'id'
        },
        treeData: [],
        defaultCheckedKeys: [],
        selectedKeys: [],
        checkedKeys: [],
        expandedKeysss: [],
        allTreeKeys: [],
        autoExpandParent: true,
        checkStrictly: true,
        title: '角色菜单权限配置',
        visible: false,
        loading: false
      }
    },
    methods: {
      onTreeNodeSelect (id) {
        if (id && id.length > 0) {
          this.selectedKeys = id
        }
        this.$refs.datarule.show(this.selectedKeys[0], this.roleId)
      },
      onCheck (o) {
        if (this.checkStrictly) {
          this.checkedKeys = o.checked
        } else {
          this.checkedKeys = o
        }
      },
      show (roleId) {
        this.roleId = roleId
        this.visible = true
      },
      close () {
        this.reset()
        this.$emit('close')
        this.visible = false
      },
      onExpand (expandedKeys) {
        this.expandedKeysss = expandedKeys
        this.autoExpandParent = false
      },
      reset () {
        this.expandedKeysss = []
        this.checkedKeys = []
        this.defaultCheckedKeys = []
        this.loading = false
      },
      expandAll () {
        this.expandedKeysss = this.allTreeKeys
      },
      closeAll () {
        this.expandedKeysss = []
      },
      checkALL () {
        this.checkedKeys = this.allTreeKeys
      },
      cancelCheckALL () {
        // this.selectedKeys = this.defaultCheckedKeys
        this.checkedKeys = []
      },
      switchCheckStrictly (v) {
        if (v === 1) {
          this.checkStrictly = false
        } else if (v === 2) {
          this.checkStrictly = true
        }
      },
      handleCancel () {
        this.close()
      },
      handleSubmit (exit) {
        const that = this
        const params = {
          roleId: that.roleId,
          menuIdList: that.checkedKeys,
          lastmenuIdList: that.defaultCheckedKeys
        }
        that.loading = true
        saveRoleMenu(params).then((res) => {
          if (res.success) {
            that.$message.success(res.message)
            that.loading = false
            if (exit) {
              that.close()
            }
          } else {
            that.$message.error(res.message)
            that.loading = false
            if (exit) {
              that.close()
            }
          }
          this.loadData()
        })
      },
      loadData () {
        const that = this
        queryUserMenuTree().then((res) => {
          that.treeData = res.data
          for (var index in that.treeData) {
            that.expandedKeysss.push(that.treeData[index].id)
          }
          console.log(that.expandedKeysss)
          queryRoleMenus({ roleId: that.roleId }).then((res) => {
              that.checkedKeys = [...res.data]
              that.defaultCheckedKeys = [...res.data]
          })
        })
      }
    },
  watch: {
    visible () {
      if (this.visible) {
        this.loadData()
      }
    }
  }
  }

</script>
<style lang="less" scoped>
  .drawer-bootom-button {
    position: absolute;
    bottom: 0;
    width: 100%;
    border-top: 1px solid #e8e8e8;
    padding: 10px 16px;
    text-align: right;
    left: 0;
    background: #fff;
    border-radius: 0 0 2px 2px;
  }

</style>
